In Japan, you can be indefinitely detained by the police and “interrogated” til you sign a confession, and have this coercive measure hold up in court as evidence. There is a reason that Japan has something close to 100% conviction rate for crimes.
In South Korea, the military and the police both have been used, since 1945, to put down those protesting their government’s actions, mostly targeted towards leftists and those who wanted USAmerican-installed/backed regimes to be more democratic. Even as recently as 2015, the police fired water cannons with enough force to kill a pro-democracy activist.
In India, the police happily abuses the indigenous people of Kashmir. This has been an issue for forever, but the recent events in Kashmir (Jammu and Kashmir Reorganisation Act of 2019) has magnified the brutality greatly.
In Canada, the police is brutal against the indigenous folks, as well as other people of color. Starlight Tour is just the tip of the iceberg for how the indigenous folks are treated by the police.
In Australia, the indigenous folks are treated much in the same way as Canada, with the police as a state tool for brutalizing and even displacing indigenous folks.
In Chile, during the recent riots over austerity, the police did much of the same things as the USAmerican police: meting out state violence gleefully, faking violence (such as setting their own patrol cars on fire and damaging private properties) and blaming the people for their own violence. This is just the tip of the iceberg also: the violence towards the Chilean people by the police goes very, very deep.
In Sweden, the mounted police trample protestors (much like in Houston, Texas the weekend of May 30th, 2020), not to mention the standard barbarism you see in European nations.
In France, the protests against pushing back retirement ages for a ton of people (including those whose bodies literally cannot take the work past the current age of retirement, like ballet dancers) saw the Police brutalizing the public, intensifying the already massive riots.
This isn’t even getting into the weeds with the Great Britain, Portugal, Spain, and other European countries’ police forces’ barbaric treatment towards those who come from its former imperial/colonial holdings.
Police is never your friend, anywhere in the world.